Cheap Flights from St. Thomas (STT) to San Juan (SIG)

Popular airlines from Cyril E. King Airport (STT) to San Juan (SIG-Fernando Luis Ribas Dominicci)

Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $119
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $119
Flights from St. Thomas (STT) to San Juan (SIG)
Origin airport
Cyril E. King
Destination airport
Fernando Luis Ribas Dominicci
Distance
74 mi

St. Thomas to San Juan Flights

The cheapest times to fly from St. Thomas to San Juan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Thomas to San Juan are during the month of . You can find some of the cheapest flights from St. Thomas to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Thomas to San Juan

Sunday is one of the best days to book for cheap flights from St. Thomas to San Juan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Thomas to San Juan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Thomas to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Thomas to San Juan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Thomas to San Juan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG) cost?
Lock in a cheap one-way flight or cheap return flight from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG)?
is the cheapest month to fly from STT to SIG. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG)?
To find the cheapest airline flying from STT to SIG, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG)?
Nonstop flights from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STT to SIG?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG)?
Book a flight from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG) last-minute?
Last-minute bookings from STT to SIG are typically more expensive. For the best rates, start looking for flights early. That said, if you can play around with your travel dates, it's possible to score a cheap ticket right before you leave.
Can I cancel or change the date of my flight from Cyril E. King Airport (STT) to Fernando Luis Ribas Dominicci Airport (SIG)?
If you reserved your STT to SIG flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

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*Available to One Key members.